B-2 General Information
8399APXB.DOC TI-83 Intl English, Appendix B Bob Fedorisko Revised: 02/19/01 1:12 PM Printed: 02/19/01 1:41
PM Page 2 of 14
The TI.83 uses five batteries: four AAA alkaline batteries
and one lithium battery. The lithium battery provides
auxiliary power to retain memory while you replace the
AAA batteries.
When the battery voltage level drops below a usable level,
the TI.83 displays this message when you turn on the unit.
After this message is first displayed, you can expect the
batteries to function for about one or two weeks,
depending on usage. (This one-week to two-week period is
based on tests with alkaline batteries; the performance of
other kinds of batteries may vary.)
The low-battery message continues to be displayed each
time you turn on the unit until you replace the batteries. If
you do not replace the batteries within about two weeks,
the calculator may turn off by itself or fail to turn on until
you install new batteries.
Replace the lithium battery every three or four years.
Do not remove both types of batteries (AAA and lithium
auxiliary) at the same time. Do not allow the batteries to
lose power completely. If you follow these guidelines and
the steps for replacing batteries on page B.3, you can
replace either type of battery without losing any
information in memory.
Take these precautions when replacing batteries.
• Do not mix new and used batteries. Do not mix brands
(or types within brands) of batteries.
• Do not mix rechargeable and nonrechargeable
batteries.
• Install batteries according to polarity (+ and N)
diagrams.
• Do not place nonrechargeable batteries in a battery
recharger.
• Properly dispose of used batteries immediately. Do not
leave them within the reach of children.
• Do not incinerate batteries.
Battery Information
When to Replace
the Batteries
Effects of
Replacing the
Batteries
Battery
Precautions